musichomescreen/mcpmusicplayer/src/applicationmonitor.cpp
changeset 0 ff3acec5bc43
child 2 b70d77332e66
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/musichomescreen/mcpmusicplayer/src/applicationmonitor.cpp	Thu Dec 17 08:45:05 2009 +0200
@@ -0,0 +1,179 @@
+/*
+* Copyright (c) 2008-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Monitors an application exit event.
+*
+*/
+
+#include <mpxlog.h>                     // MPX_DEBUG
+#include <e32base.h>
+#include <e32std.h>
+#include <apacmdln.h>
+#include <apgtask.h>
+#include <AknTaskList.h>
+
+
+#include "applicationmonitor.h"
+#include "applicationmonitorobserver.h"
+
+
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CApplicationMonitor::CApplicationMonitor( MApplicationMonitorObserver& aObserver)
+        : CActive( EPriorityNormal ),
+        iObserver( aObserver )
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Second Phase Constructor
+// ---------------------------------------------------------------------------
+//
+void CApplicationMonitor::ConstructL()
+    {
+    CActiveScheduler::Add( this );
+    }
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor
+// ---------------------------------------------------------------------------
+//
+CApplicationMonitor* CApplicationMonitor::NewL( MApplicationMonitorObserver& aObserver)
+    {
+    MPX_DEBUG1("CApplicationMonitor::NewL <---");
+    CApplicationMonitor* self = new( ELeave ) CApplicationMonitor( aObserver);
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    MPX_DEBUG1("CApplicationMonitor::NewL --->");
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CApplicationMonitor::~CApplicationMonitor()
+    {
+    MPX_DEBUG1("CApplicationMonitor::~CApplicationMonitor <---");
+    Cancel();
+    iThread.Close();
+    MPX_DEBUG1("CApplicationMonitor::~CApplicationMonitor --->");
+    }
+
+// ---------------------------------------------------------------------------
+// Starts monitoring a particular Application
+// ---------------------------------------------------------------------------
+//
+void CApplicationMonitor::StartL( TUid aAppUid , TBool aRootAppIndication )
+    {
+    MPX_DEBUG1("CApplicationMonitor::StartL <---");
+    RWsSession wsSession;
+    User::LeaveIfError( wsSession.Connect() );
+    TUint64 threadId(0);
+    TBool taskExists(EFalse);
+    TInt status = KErrNone;
+    if(aRootAppIndication)
+        {
+        CAknTaskList* taskList = CAknTaskList::NewL( wsSession );
+        TApaTask task = taskList->FindRootApp( aAppUid );
+        delete taskList;
+        taskExists = task.Exists();
+        threadId = task.ThreadId().Id();
+        }
+    else
+        {
+        TApaTaskList taskList( wsSession );
+        TApaTask task = taskList.FindApp( aAppUid );
+        taskExists = task.Exists();
+        threadId = task.ThreadId().Id();
+        }
+    wsSession.Close();
+    
+    if (taskExists)
+        {
+        MPX_DEBUG1("CApplicationMonitor::StartL app found");
+        status = iThread.Open(TThreadId(threadId));
+        if ( status == KErrNone )
+        	{
+        	iThread.Logon(iStatus);
+        	SetActive();
+			}
+        }
+    else
+        {
+        MPX_DEBUG1("CApplicationMonitor::StartL not app found");
+        User::Leave(KErrNotFound);
+        }
+    MPX_DEBUG1("CApplicationMonitor::StartL --->");
+    }
+
+// ---------------------------------------------------------------------------
+// RunL callback
+// ---------------------------------------------------------------------------
+//
+void CApplicationMonitor::RunL()
+    {
+    MPX_DEBUG1("CApplicationMonitor::RunL <---");
+    switch (iStatus.Int())
+        {
+        case EExitKill: 
+        case EExitTerminate:
+        case EExitPanic:
+            MPX_DEBUG1("CApplicationMonitor::RunL kill\terminate\panic");
+            iObserver.HandleApplicationClosedL((TExitType) iStatus.Int());
+            break;
+        case KErrCancel:
+        case KErrNoMemory:
+            MPX_DEBUG1("CApplicationMonitor::RunL cancel\memory");
+            break;
+        case EExitPending: 
+        default:
+            MPX_DEBUG1("CApplicationMonitor::RunL exitpendin\default");
+            // Listen again
+            iThread.Logon(iStatus);
+            SetActive();
+            break;
+        }
+    MPX_DEBUG1("CApplicationMonitor::RunL --->");
+    }
+
+// ---------------------------------------------------------------------------
+// Handle Cancelling
+// ---------------------------------------------------------------------------
+//
+void CApplicationMonitor::DoCancel()
+    {
+    MPX_DEBUG1("CApplicationMonitor::DoCancel <---");
+    // Stop monitoring
+    iThread.LogonCancel(iStatus);
+    MPX_DEBUG1("CApplicationMonitor::DoCancel --->");
+    }
+
+// ----------------------------------------------------------------------------
+// Handles a leave occurring in the request completion event handler RunL()
+// ----------------------------------------------------------------------------
+//
+TInt CApplicationMonitor::RunError(TInt /*aError*/)
+    {
+    MPX_DEBUG1("CApplicationMonitor::RunError <---");
+    // Listen again
+    iThread.Logon(iStatus);
+    SetActive();
+    MPX_DEBUG1("CApplicationMonitor::RunError --->");
+    return KErrNone;
+    }